165739936 has 48 divisors (see below), whose sum is σ = 347457600. Its totient is φ = 77552640.

The previous prime is 165739927. The next prime is 165739943. The reversal of 165739936 is 639937561.

165739936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 165739936.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107491 + ... + 109021.

It is an arithmetic number, because the mean of its divisors is an integer number (7238700).

Almost surely, 2^165739936 is an apocalyptic number.

165739936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165739936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173728800).

165739936 is an abundant number, since it is smaller than the sum of its proper divisors (181717664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165739936 is a wasteful number, since it uses less digits than its factorization.

165739936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1749 counting only the distinct ones).

The product of its digits is 918540, while the sum is 49.

The square root of 165739936 is about 12874.0023302779. The cubic root of 165739936 is about 549.2993126783.

The spelling of 165739936 in words is "one hundred sixty-five million, seven hundred thirty-nine thousand, nine hundred thirty-six".